Time-stamp.



J. J. BUSENBENZ.

- TIME STAMP.

APPLICATION FILED NOV.29,1907.

938,410, Patented oct..26,1909.

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13 SHEETS-S J. J. BUSENBENZ.

TIME STAMP.

APPLICATION FILED Nov.29, 1907.

J. J. BUSENBENZ.

TIME STAMP.

APPLICATION FILED NOV. 29,1907.

Patented Oct. 26, 1909.

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TIME STAMP.

APPLIOATION FILED N0v.29,1907.

Patented Oct. 26, 1909.

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J. J. BUSENBENZ.

TIME STAMP.

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J. J. BUSENBENZ.

Patented Oct. 26, 1909.

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TIME STAMP. APPLICATION FILED NOV. Z9, 1907.

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J. J. BUSI-INBBNZ.

TIME STAMP.

APPLICATION FILED Nov.29,1907.

Patented Oct. 26, 1909.

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J. J. BUSENBENZ.

TIME STAMP. v

APPLICATION FILED Nov. 29, 1907.

Patented Oct. 26, 1909.

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J. 1. BUSENBENZ.

TIME STAMP. l APPLICATION FILED NOV. Z9', 1907.

Patented Oct. 26, 1909.

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J. J. BUSENBENZ.

TIME STAMP.

APPLICATION FILED Nov. 29, 1907.

Patented Oct. 26, 1909. 13 SHEETS-SHEET 11.

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J. J. BUSENBENZ.

TIME STAMP.

APPLICATION FILED NOV. 29,1907.

Patented @ct.26,1909.

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TIME STAMP. APPLIOATION FILED Nov. 29, 1907.

Patented Oct. 26, 1909.

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TIME-STAMP.

lSpecification of Letters Patent.

To all whom 't may concern:

Be it known that I, JACOB J. BUSENBENZ, a citizen of the United States,residing at 7 46 Montrose avenue, Chicago, in the county of Cook andState -of Illinois, have invented a new and useful Improvement in' Time-Stamps, of which the following is a specifk,

to bring automatically into position forstamping, the day, the meridian(A. M. and I. M the hours, the minutes and fractions 'of a minute, andin some instances the months and years. The impression of this class oftime-stamp is taken directly from revoluble type-wheels carrying theprinting characters on their peripheries, these wheels being actuated bypawls engaging with ratchets on the wheels, detents bein provided tocoperate with the pawls. n this construction there is, thus, no absolutexed connection of any kind between the printing wheels and theiractuating mechanism. While a time-stamp of this class has a wide rangein the matter of automatically taking care of the minute, the hour, andthe day of the'month, it is ,always liableto become disorganized bythrowingjlie separate units or divisions Iof time out of their order;and the rpractical difliculty of resetting the `wheels to correct suchdisorder has been found to present a serious objection to the use oflthis class of time-stamp.

' avoid the objection referred to, without sacautomatically rlhe primaryobject of my invention is to rificing any of the advantages' of theordinary straight-line-impression type of stam and this I accomplish,lgenerally stated, y directlyL gearing together, asa train, the

printing wheels in a manner to cause them to be absolutely interlockedand to renderl their relative positions in the train of gearsunchangeable, except lasfthey are Vchanged to adapt the wheels to-recordthe advance of time; thereby,^moreover,pro

ducing the additional advantage of afording mechanical conditions thatrender the operation of the stamp so simple that it may be safelyinstrusted to the ordinary oicehelp.

In the accompanying drawings, Figure 1 shows my improved time stamp inits normal condition byl a view in sidek elevation. Fig. 2 is a sectionon the line A-A, Fig. 3, and Fig. 3, an enlarged longitudinal sectionthrough the entire device on line B, Fig. 2, and on line B, Fig. 5,showing it in the position of stamping. Fig. t is a broken section online C, Fi .,5, showing shutter means for automaticalgy opening andclosing a key-insertion openin in the case. Fig. 5 is asection on lineD- Fig. 3, showing all the type-wheel actuating mechanism in the head ofthe casino' in sectional elevation. Fi 6 is a broken pklan view of asheet or strip which has been stamped'by the device. Fig. 7 is anenlarged broken section on the irregular line E-E, Fig. 5. Fig. 8 is aview in elevation of one of the gear-wheels and the pinion meshingtherewith, employed Patented Oct. 26, 1909.

Application led November 29, 1907. Serial No. 404,398. l

in the train of gears, and Fig. 9 is a section on line Fe-F, Fig. 8.similar to lthat presented Fig. 7, but showing the pawl and detent ofthe primary actuating ratchet of the device thrown out of engagementtherewith. Fig. 11 is a view in side elevation'showing one of thetypewheels with its face-plate removed. Fig.4 12 is a section on line G,Fig. 5, and Fig. 13, a

Fig; 10 is a view view in broken side elevation of the mechan-y ismshown in Fig. 12. Figs. 14; and 15 are sect-ions respectively on the'irregular line H and the line I, Fig. 5, but showing on Fig. 15, apivotally movable slotted arm omitted from Fig. 14, to avoid confusionin the last-named figure. Fig. 16 is an enlarged `broken sectional viewof the case-locking mechanism taken online D, Fig. 7; Fig. 17,

a broken section on line K-K, Fig. 156, Fig. i

18, a detail view in side elevation of one of vthe two similar tiimblersfor the lockw shown in Fig.' 16, and. Fi 19 a view in side elevation ofthe key. Fig. 2O shows the character'- wlieel by an 'enlarged section online L-v-L, Fig. 21, and Fig. 21 is a view of the same in side elevationwith its `face-plate removed.

Fig. 22-is a developed'view ofthe wheel shown in 20, representingcharacters that may be provided thereon. Fig. 23 is a section on lineM-M, Fig. 24, showing the primary actuating ratchet with its barrel andgear and the fractional-minute typewheel driven by it; Fig. 24, asection on line N*N, Fig. 23, showing two intermeshing Gears inelevation, and Fig. 25, a broken developed view of the type-wheel ofFigs.-'23 and 24.-v Fig. 26 is a section on line O, Fig. 27, showing, inelevation, gearing for transmitting motion to type-wheels; Fig. 27, asectional view on line P, Fig. 26, showing the gears of the last-namedfigure in elevation, and Figs. 28c and 29, are developed views of thetwo type-wheels shown in Fig. 26. Fig. 30 is a section on line R-R, Fig.

32, through gearing for transmitting motion to certain othertype-wheels; Figs. 31 and 32 are sections respectively on lines S-S, andT-T, Fig. 30, showing in elevation the gear-wheels of Fig. 30, and Fig.33 is a developed view of the type-wheel shown in Fig. 30. Fig. 34 is asection on line U-U, Fig. 35, showing gearing for transmitting motion tostill other type-wheels; Fig. 35 is a section on line V-V, Fig. 34,showing in lelevation the gears ofthe last-named figure,

and Figs. 36, 37 and 38, are broken developed views, respectively of thethree typewheels shown in Fig. 34.

The base 39 of the time-stamp, which may be formed of wood, is shown tobe surmounted by a ribbed metal plate 40, the forward end of which formsthe impressionbed 41, containing as an insert a suitable impression pad42 to receive the impact of the typewheels, hereinafter described. Thebase, as will be observed 4contains no mechanism whatever, all of theactuating mechanism of the device being housed in the casing 43 in closeassociation with the stamping mechanism. The casing which consists of acurved neck-portion terminating in a head 44, from the top of whichextends the hand-pounded knob 45, is hinged at the rear end of its neckportion to the'adjacent end of the base, as represented at 46, and ismaintained in the normally' raised position re resented in Fig. l by thetension of a coiled spring 47 fastened at one end to a lug 48 (Fig. 3)in the neck, and at its opposite end to a lug 49 on a rigid finger' 50provided at the rear end of the base and carrying a cushion 51 to beengagedby a face 52 on the inner side of the casing for limiting theextent of rise of the latter under the recoilforce of the spring 47. Thecasing is formed of two main sections, the upper one of which, as a cap,is hinged at its rear end, as shown at 53, to the adjacent end of thelower section; and it contains in its forward end, at which it formspart of the head 44, a socket 54 to receive the dowel-pin 55 projectingfrom the upper edge of a door 56, also forming part of the head to whichit is hinged at 57, this door carrying an inwardly projecting rigidfinger 58, for the purpose hereinafter explained. On the bottom of theinterior of the neck-portion of the casing is formed a seat 59 (Fig. 2),of general W-shape, for the two spools of an ordinary electromagnet 60,which is rigidly confined or anchored in place by a saddle 61 ofcorresponding shape in cross-section to bear against and lit the spools,being securely fastened in place at one end by a screw 62 introducedinto a cross-piece 63 formed on the interior of the casing and at itsforward end by a screw 64 inserted into a post 65 rising from the baselof the casing. The armature 66, which crosses the poles of the twomagnet-s ools is carried on a rod 67 re- D P a ciprocably supported andhaving confined about it a spiral spring 68 tending to force thearmature away from the magnet-cores.

All of the printing mechanism of the timestamp, as also thetime-controlled actuating means therefor and the inked ribbon, takeupand pay-outmechanism, are housed in the casing-head 44; and to renderthem accessible for repairs and the like while safeguarding them againstunauthorized access, the upper hinged section of the casing is providedwith means for locking 1t in place; and following is a description ofsuch means, particular reference being had to Figs. 5 and 16 to 19,inclusive.

A continuous cylindrical tube 69 is ri idly supported at one end in aside wall 0 the head 44 to extend horizontally across the same andcontains in its opposite-end portion a plug 70 having its bearing at itsreduced projecting end in the opposite sidewall of the head. This pluwhich is nonrotatably confiend in the tu e by a pin 71, contains in itsinner-end a central socket 72 to receive the forward reduced end of asuitable key 73 shown in Fi 19 to be provided on its stem with lateralyprojecting wings 74 and 75. At intervals in the tube 69, and pinnedtherein against rotation, are theiillingsleeve 76 and 77 containingcentral longitudinal key-passages'78 alining with the socket 72 andlaterally recessed along their opposite sides to guidingly receive thewinged stem of the ke At each space at an end of the filling-slbeve 78the tube 69 contains a longitudinal slot, as shown at 79 in Figs. 5 and17. Coincident with each slot there depend rigidly from opposite sidesof a rib 80 on the top of the casing-head similar tumbler-engagingbrackets 8l, 81, each containing an arc-shaped recess 82 slightlyexpanded at its inner end; and the depending portion of each bracketconforms to and fits about an arc-shaped section of -the tube 69.Between each pair of the brackets are confined two similar key-ways 83in the form of rings containing central openings of the shape incross-section of the passage 78 and each having extended from it througha slot 79 a segment-shaped head 84; and the rings 83 are confined in thetube 69 between similar key-way forming rings 85 each having extendedfromit a tumbler 86 conform-A ing in shape to that of the recess 82 andriveted at 87 to the adjacent head 84.

By inserting the key 73 into the key-way to register its wings 74 withthe innermost rings 83 and 85, and its wings 75 with the outermost rings83 and 85, turning the key will turn with it the said rings to lock orunlock the upper hinged section of the casing, depending upon thedirection of turning the key, since thereby the tumblers 86 will beturned to introduce them into vor withdraw them from the recesses 82.The tumblers are slightly yielding resiliently toward their expandedends to adapt them to snap into releasably interlocking condition withthe correspondingly enlarged inner ends of the recesses 82; and thesegments 84 tend to reinforce the tumblers, which are comparativelylight, by taking olf the latter the weight of the upper hinged sectionof the casing, the head-portion of which bears against the segments inthe locked condition of the device.

Inside the head 44 are suspended from near the op osite ends of thesleeve 69 two similar bearing-plates 87 and 88 of the contour mostclearly illustrated in Figs. 10, 12, 14 and 15.- '.lhese plates adordbearings for the endsof a rotatable shaft 89 adapted to have a keyapplied to it at one end, for the purpose hereinafter explained, thisend being coincident with an opening 90 in the casing normally closed bythe shutter-device shown in Fig. 4 as comprising a shutter 91 in theform of an arm pivoted at one end to the adjacent side of thecasinghead, at 92, and expanded toward its opposite end in which itcontainsan arc-shaped slot 93 through which projects-from the casingsidea headed stud 94 for confining the shutter in its movements. The shutteris'given a normal tendency to rise and uncover the key-hole 90 by aspring 95 confined toward its free end by a lug 96 projecting from aside of the shutter into the path of alug 97 on the cap 43, wherebyclosure of the cap bears the lug 97 against -the shutter to close it,and in closing it tensions the spring 95, so that when the cap or uppercasing-section is raised, ythe recoil of the spring will open Itheshutter to uncover the hole 90 and afford access to the shaft 89' with akey. f

In the lower parts of the suspended plates 87, 88 is rigidly supported ashaft 98 carrying rotatably on one end a sleeve 99, which is formedintegral with the character-wheel of the stamping mechanism hereinafterdescribed. fThis sleeve passes at its reduced outer end through theadjacent side-wall of the casing-head, in which it is engaged by thetubular'stem on a knob or handle 100 providedfor turning thecharacter-wheel when desired.

From the lower part of one end of the armature 66 extends a link 101pivoted at one end to the armature at 102. rllhe free end of this link.is pivotally connected to a second link 103, which in turn 1s pivoted atone of its ends to the plate 87 by meansG of a stud projecting inwardlyfrom the same. To the free end of the link is pivoted a pawl 104provided with a pin 105 for the purpose which will hereinafter appear,and also with an ear into whlch 1s hooked one end of a spring 106 havingits opposite end engaging a similar ear upon the link 101. The tensionof the spring 106 causes the tooth of the pawl to normally engage atwelve-tooth ratchet 107 upon the shaft 89 and held by a spring-presseddetent 1031.- This is the only pawl-and-ratchet mechanism employed inthe stamping mechanism of the device.

Following is a detailed description of the train of gear-driventype-wheels rotatably mounted on the two shafts 89 and 98: 0n a Asleeve108 (Fig. 23), keyed to the shaft 89 and upon. which is rigidly mountedthe ratchet 107, is similarly mounted at the opposite end of the sleevea 27 -tooth gear 109 having the same motion as the ratchet. This gearmeshes with a 27 -tooth gear 110 secured aboutone end of the hub 111 ofa type-wheel 112, the hub loosely surrounding theshaft 98; and thistype-wheel is provided at intervals about its periphery with three setsof the numbers .0, .25, .50, .75, as represented in Fig. 25, to denote,decimally, fourths of a minute or intervals of. fifteen seconds. @n theopposite end 'of the hub 111 is secured a three-tooth Geneva-pinion 113having the same motion as the ratchet and meshing with a 12-space Genevagear 114 Figs. 23 and 24), secured on a hub115 loosey surrounding theshaft 89. The diameters of the pinion 113 and gear 114 are equal. gear116 (Fig. 26) meshing with a 25-t0oth gear 117 on the hub 118 of theminute-umts type-wheel 119, this hub loosely surrounding shaft 98. r1`heproportions of these two lastnamed gears are as 12-10. rlheprintingwheel 119 is provided about its peripheryv gear 120 (Figs. 26and 27), meshing with a similar gear 121 secured on a hub 122 looselysurrounding the shaft89, this hub 0n the hub 115 is secured a 30-toothcarrying alsoa l-tooth Geneva-pinion 123 meshing with a 10-spaceGeneva-gear 124 secured on the hub 125 loosely surrounding the shaft 98,of the minute-tens printing type-wheel 126 having type spaced about itsperiphery in the order 00-'1-1-2-2 also carries a 30-tooth gear 127,(Fig. 30) meshing with a 25-tooth gear 128 on a hub 129 looselysurrounding the shaft 89 and carrying a 2-tooth Geneva-pinion 130 (Fig.31), meshing with a 12-space` Geneva-gear 131 on the hub 132, looselysurrounding the shaft 98, of a type-Wheel133 carrying type on itsperiphery of the consecutive numbers 1 to 12 uniformly spaced apart.'This last-- named hub also carries a l-tooth Genevapinion 134 meshingwith a 12-space Genevagear 135 (Fig. 32) on a hub 136 looselysurrounding the shaft 89 and carrying a 27- tooth gear 140 (Fig. 34)meshing With a similar gear 141 on the hub 142, loosely surrounding theshaft 98, or the gear of the meridian type-Wheel 143; and the type onthe periphery are arranged and suitably spaced apart to print A. M.7 1).M. six times, or in the order represented in Fig. 38. The hub 142carries on its opposite end a 24- tooth spacing gear 144 (Fig. 8) havingevery alternate tooth cut away, thus leaving, actually, only twelveteeth. This gear meshes With a 12-tooth pinion 145 on one end of a hub146 loosely surrounding the shaft 89 and carrying on its opposite end a30-tooth gear 147 meshing With a 25-tooth gear 148 secured on the hub149 loosely surrounding the hub 142, the relation of the gear 147 to thegear 148 being as 12 to 10. The hub 149 is that of the unit-date Wheel150, the type on which are spaced about its periphery and form thenumerals O to 9 inclusive (Fig. 37). The hub 146 also carries, adjacentto the pinion 145, a l-tooth Genevapinion 151 meshing With a 10-spaceGenevagear 152 secured on the hub 153, loosely surrounding the'hub 142of the tens-day type- Wheel 154, the type on the periphery of which bearthe numerals 1-2`3- (Fig. 36) With the remainder of the peripheral spaceleft blank (Fig. 36), for the purpose hereinafter described.

It should here be explained that for facility and expedition inadjustment, the unit.- day Wheel 150 and the tens-day Wheel 154, thoughgeared in the train driven from the ratchet 107, as hereinafterdescribed, are independently adjustable by hand Without affecting thegears in the train, so that, at the end of each month they may bemanually turned back to record the first day of t-he month. Thisfunction is rendered possible by the construction shown in Fig. 34 andmost clearly illustrated in Fig. 11. The following description of themechanism last referred to is given with reference to the vvheel 150,but applies equally to the Wheel 154 inasmuch as the construction is thesame: I'n the outer lface of the type-Wheel is formed a recess 155 ofstepped shape in cross-section, and Acontaining in its inner deepersection a serrated circumferential flange 156 on the hub 149 which, asaforesaid, loosely surrounds the hub 142. In a curved enlargement 157 ofthe recess 155 is conined a spring 158 bearing at its free end againstthe periphery of the iiange 156 to engage resiliently With the notchestherein. Thus, While the spring connects the type-Wheel with the hub 149With sufficient pressure to cause it to be rotated by the rotation ofthe hub under the driving action of the gearing, the type-Wheel mayobviously be manually turned on gaining access to it by unlocking thecasing and opening the door 56, as for setting it back Withoutdisturbing the set of the gears, because in so turning it the free endof the spring 159 will snap over the teeth on the flange 156. The recessin the face of the type-Wheel is covered by"l a plate 160 (Fig. 34)secured in place by screws 161 (Fig. 11).

Next adjacent to the ratchet 107 there is provided on the shaft 98, toloosely surround it, the year-type Wheel 162 provided about itsperiphery with a series of numbers denoting. years. On asleeve-extension 163 of this year-'Wheel is provided a circumferentialseries of teeth (Figs-3 and 7), engaged by the finger 58 on the door 56to prevent accidental turning of the Wheel which, as indicated in Fig.5, involves the saine construction as that of the type-Wheel shown inFig. 11 and hereinbefore described, being provided in this instance toenable the periphery of the Wheel to be turned independentl of its hub,Which is rigid on the shaft. Gln the shaft 98, near its opposite end, issupported the month type-Wheel 164 (Figs. 5 and 14), provided about itsperiphery With the names of the months of the year in type, this Wheelbeing also, as indicated in Fig. 5, of the construction of thetype-Wheel 150 illustrated in Fig. 1]. To prevent this Wheel 164 fromaccidental turning it is provided aboutl its periphery Wit-h a series ofteeth 165, engaged by a dog 166 (Fig. 14), guidingly supported atopenings in it on the tube 69 and shaft 89 and pressed by a spring 167to engage at its upper end with the under side of the casing-section 43,Which Whenclosed engages the dog with the teeth 165 and when unlockedand open frees the spring 167 to raise the dog out of engagement Withthe teeth 165 and permit the month-wheel to be freely turned by hand forsetting it. Adjacent to the Wheel 164 is mounted on the shaft 98 thecharacter- Wheel 168 (Figs. 5, 20 and 21) provided With the sleeve 99hereinbcfore referred to and about its periphery with the type forprinting desired legend matter, such as that shown in Fig. 22, thecharacter-Wheel being preferably of'the construction most clearly shownin Fig. 21, Which is 'l he same as that of the Wheel 150 illustrated inFig'. l1, involving a stepped recess 169 in one side about the hub,which is provided with a circumferential series ,of teeth 170 to beyield.- ingly engaged by the free end of a spring 171 contained in anenlargement 172 of the recess, the open side of the wheel being closedby a plate 173.

An inking-ribbon 182 is interposed between the various type-wheels andthe impression pad 42, and f or actuating it4 the following-describedmechanism is provided: On the upper end-portions of each of the twosuspended bearing-plates 87 and 88 are provided laterally-extending ears175, and similar ears 17 6 extend laterally from the opposite edges ofthe plate 88 near its lower end. These two plates are rigidly held inplace by screw-studs 177 passing through the sidewalls of thecasing-head to engage the plates near their lower edges. In oppositeears 175 are journaled, respectively, the ribbon-rollers 178 and 179carrying on adjacent ends the ratchet-wheels 180 and 181; and theinkingribbon extends between the two rollers and passesl between itsends over suitably disposed guide-rods 183 (F ig. 3), which extendVbetween opposite end-walls of the casinghead. In the ears 176, on theplate 88, are fastened to extend horizontally screw-studs carryingrollers 184 on which rides a carriage 185 (Figs. 12 and 13), shown ofinverted general U-shape. @n the outer face of the plate 88 is supporteda vertically movable plate 1.86 surrounding an enlarged opening 187 nearits lower end the characterwheel sleeve 99 and containing in the base ofa U-shaped slot 188 in'its upper end `an extension 189 of the slot intowhich projects from the plate 88 a rigid stud 190 (Fig.l 13) for guidingthe sliding plate in its movements superinduced, as hereinafterdescribed, by a foot 191 on the lower end of the sliding plate, betweenwhich yand the sleeve 99 is confined about a vertical pin 192, a spiralspring 193. At opposite sides of the slot 188 are pivoted between theirends on the sliding plate 186 the two pawls 194 and 195 to engagerespectively, with the ratchet-s 180 and 181, these pawls extendingthrough similar openings 196 in the top of the carriage 185 which arelonger than the width of the pawls; and at their hooked extremities thepawls are resiliently connected by a coiled spring 197 Un the sleeve 99is pivotally supported to extend upwardly along the inner face of thebearing-plate 88 an arm 198 (Fig. 15), containing a slot- 199 where itpasses the shaft 89 and forked at itsl upper end to aHord bearings forcorresponding ends of similar fixed rods 200, each being provided tobear one at a time against the adjacent roll of the ribbon 182. rlheserods are similarly supported at theiropposite ends on an arm 201 (Fig.5) journaled on the end of the stationary shaft' 98, to extend along theouter face of the plate l87 from which it l,is shown to be spaced, and

through 4an opening in lwhich the key-end of the shaft 89 passes. Thearm 201 is otherwise in all particulars like the arm 198, except that itis devoid of any slot 199 since the shaft 89 does not pass through it.The rods 200, however,'pass through arc-shaped slots (Figs. 7 and 10) inthe upper part of the plate 87. outer face of the arm 198, centrallybetween the forked prongs on its free end through a laterally elongatedslot 203 (Fig. 12) in the A stud 202 projects from the bearing-plate 88and pivotally engages on` the opposite side of the bearing-plate 88 witha crank-arm 204 fulcrumed on the plate at 205 and provided on its freeend with a laterally proj ecting finger 206, which affords a bearing forthe upper end of a post 207 about which is confined between the finger202 and a rigidA collar on the end of the f post, a spiral spring 208.The post is pointed at its lower extremity to have a rocking bearing ina recess 209v in the top of the carriage 185 for actuating the carriagein the following manner: Each time the time-stamp is operated by ablowupon the knob45 to depress the vswinging casing, the foot 191 on theplate 186 encounters, in the downward movement of the casing, the pad 42whereby the continued movement of the casing raises the arm 186 with theresult of raising both pawls, but the particular one engaging with aribbon-roll ratchet the extent of one tooth of the latter, whereby whenthe casing rises.

under the recoil-action of its controlling spring 47 the foot 191 isfreed from abutment against the pad and the spring 193 depresses it tolower the plate 186, which carries downwardly with it such pawl to turnthe respective ratchet the extent of one tooth and thus wind the ribbonaccordingly on the respective roll thereof from the other roll.

When the ribbon has been unwound more or less completely from'A one rollupon the other the increment of the latter turns the arms 198 and 201 bybearing against the respective rod 200 until the stud 202 has justpassed the dead-center, when the recoil of the spring 204, which hasbeen compressed by the movement of the arm 198, will snap the two armsto complete their throw, which is arrested by the encounter of the pin202 with the end of the slot 203. As the result of either throw of thearms 198 and 201,-

after to rewind the ribbon on the roll controlled by the other ratchet,as 180. Stops 174 are shown in Fi 12 to be provided on the ends of thecarrlage in positions to encounter the edges of the bearing plate 88`for limiting the throw 'of the carriage. As

shown in Fig. l15 the rods 200 are cut away j at a point between theirends coincident withthe edges of the dog 166 to avoid being ob--structed by the latter in their movements.

To enable the gears in the train thereof to be set manually through thekey, as is sometimes required, the ratchet 107 must be preparatorilyfreed from its actuating pawl and coperating detent; and for thispurpose the following-described mechanism is employed, reference beinghad particularly to Figs. 3, 5, 7 and 10: On the sleeve 108 surroundingthe shaft 89 isV loosely mounted a cam-disk 210 carrying on its outerside a stud 211 projecting through an arc-shaped slot 212 in the plate87 for limiting the throw of the cam-disk, which is provided with thetwo cam-faces 213 and 214 to engage, respectively, with the stud 105 onthe pawl 104 and a stud 215 on the detent 1031. For holding the cam-diskin the positions to which it is thrown, aV flat spring 216 is providedto bear between its ends against the stud 211, being fastened at one endto a post 217 on the plate 87 and confined at its opposite end against apin 218 projecting from that plate.

When it is desired to free the ratchet 107, the upper section of thecasing is unlocked by the use 'of the key 73, as hereinbefore described,permitting that section to be raised for access to the stud 211, turningof which from the normal position represented inFig. 7 to that shown inFig. 10 engages the cam-face 214 with the detent-stud 215 to disengagethe detent from the ratchet, and the cam-face 213 with the stud 105 tosimilarly disengage the pawl 103, which is locked in. its operativeposition by engage ment at its recessed rear end with a stud 218projecting inwardly from the plate 87, to prevent accidental turning ofthe ratchet between the gear-train actuating impulses which operate thetrain as follows: The terminals of the electromagnet 60 are connected byinsulated wires 219 and 220 (Fig. 3), with an ordinary form of contactdevice in a master-clock (not shown), commonly cm ployed withtime-stamps, one known form of such device beingacontact finger adaptedto be engaged in succession` by contact-points on a wheel in theclock-train, preferably the minute-wheel, and which for the purposes ofthe present time-stamp would be four in number spaced equally apart. toencounter the contact-linger and closel an electric circuit at intervalsof fifteen seconds. Each closure of the circuit energizes the magnet 60to attract its armature and, through the connection of the latter withthe pawl 103, retract the pawl the extent of one ratchettooth to set itfor turning the ratchet to that extent by the recoil-action of thespring 68 when the magnet is denergized. The ratchet has twelve teeth,and since it is actuated under the impulse of the electromagnet each'teen seconds,

it makes a completel revolution in three minutes, thereby causing thegears 109 and 110 and with them the' fractional minute type-wheel 112 tomake a complete revolution 1n three minutes to repeat the series ofcharacters upon it three times in each r'evolutio The 3-toothGeneva-pinion 113, which has the same motion as the ratchet, advancesthe 12-space Geneva-gear 114 one space each fourth impulse of theratchet, whereby the gear 114 is advanced one space every minute. The30tooth gear 116 makes one coniplete revolution in twelve minutes anddrives the 25-tooth gear 117 to make a complete revolution every tenminutes, thereby correspondingly driving the minute-unit type-wheel 119;and the 27-tooth gear 120 drives the similar gear 121 with the samemotion. The l-tooth Geneva-pinion 123 drives the 10-space Geneva-gear124 one space every ten minutes to print the minutetens, and causes itto make a complete revolution in two hours wit-h six impulses per hour.The 30-tooth gear 127, by its engagement with the 25-tooth gear 128, hasthe same motion as the gear' 124, namely one revolution every two hours.The 2-tooth Geneva-pinion 130 engages the 12-space Geneva-gear 131 toactuate it once every sixth impulse of that pinion, to print the hourssuccessively in the complete revolution of the gear produced by twelvehour-impulses. The l-tooth Geneva-pinion 134 drives the 12-spaceGeneva-gear 135 one space every twelve hours, and the 27-tooth gear 140e11- gages the similar gear 141 to transmit the motion of the gear 140through the gear 141 to the meridian type-wheel 143, which makes onecomplete revolution in six days through twelve impulses, which bringinto printing position, alternately, the characters A. M. and I. M. Thespaced 12-tooth gear 144 is advanced one space every twelve hours and byits engagement with the 12- tooth pinion 145, a vances the latter onespace every twenty-four hours because, owing to the double space betweenthe teeth of the gear 144, only the alternate impulses of that gear willcause it to engage the pinion 145. The S30-tooth gear 147 drives the25-t0oth gear 148 to turn the units-date type-wheel 150 one completerevolution in ten days, and the l-tooth Geneva-pinion 151 by itsengagement with the 10-space Genevagear 152 advances the latter onespace every ten days to turn the tens-date type-Wheel 154 which, owingto the arrangement of the type upon its periphery, namely 123` leavesthe remalnder of the space about the periphery of the wheel blank, since-.the wheel requires to be set back by hand to its starting position -atthe beginning of each month and remains at a blank space for the firstnine days while the unitsillustration.

.and gears 141 ing essaiedat Wheel 150, which registers only with thetens-date wheel at the beginning of the tenth day, advances thetens-date wheel to 1 and remains at this point until the end of thenineteenth day. This movement will, obviously, be repeated on lthetwentieth and thirtieth days. j

The knob 100 serves as an index in setting the character-Wheel 168,being provided about its periphery with the same legendmatter as thatprovided on the characterwheel but in reverse order so that when certainsuch matter appears on the top of the knob its counterpart will occupythe printing position on the character-wheel. rlhis is an expedient toocommon to require any From the foregoing description of the printingmechanism on the two shafts 89 and 98 it will be seen that it is dividedinto what may be characterized as units, unit No. 1 comprising theyear-wheel 162; unit No. 2, the ratchet, the sleeve 108 and the gear109; unit No. 3, the two gears 110 and 113 and the type-wheel 112; unitNo. 4,. the hub 115 and the gears 114 and 116; unit No. 5, the-tye-wheel 119 and gears 117 and 120; unit o. 6, the hub 122 and ggear 121and 123; unit No. 7, the type-wheel 126 and the gears 124 and 127; unitNo. S, the hub 129 and gears 128 and 130; unit No. 9, the typewheel 133and gears 131 and 134; unit No. 10, the hub 136 and gears 135 and 140;unit No. 11, the type-wheel 143 on its hub 142 146 and gears 145, 147and 151; unit No. 13, the type-wheel 150 and gear 148; unit No. 14, thetype-wheel 154 and gear 152; unit No. 15, the month type-wheel 164, andunit No. 16, the character-Wheel 168.y

The preferred primary actuating power for my tricity, but it would bewithin my invention to employ for the purpose any other suitable drivingpower.

lt should be mentioned as a particular advantage of rigidly confiningthe electromagnet in the hin ed casing instead, as heretofore, ofproviding it in the base of the timestamp, that thereby the constant jarand pounding to which the magnet is subjected in the use of the device,affect the magnet or incur liability to shearthe wires with the resultof causing a short circuit or of breaking the circuit. Moreover, by soproviding the magnet in the hinged casing the danger of fire is avoidedwhich exists where the magnet is housed in the base of the device, inthe event of shortcircuiting.

What l claim as new and desire to secure by Letters Pat-ent is- 1. ln a,direct-geared time-stamp, a train -of gears arrangedon adjacent shaftsto in- 'termesh in succession from one shaft to anon adjacent and 144;unit No. 12, the hub improved time-stamp is that of elec-` .n finger,

shafts in said casing to intermesh in succeswill not injuriouslyl Ytions,

other, said train being divided into units, including type-wheels, andthe gears permanently interlocking while bearing fixed relation to' eachother, and a unit-forming type-wheel comprising a hub fixedly mounted onone of said shafts and containing in one side a stepped recess withteeth projecting from it in the inner part of said recess, atype-bearing annular rim loosely surrounding the hub, a spring-pawl onsaid rim engagingsaid teeth, and a plate covering the recessed side ofthe hub, for the purpose set forth.

2. ln a direct-geared time-stamp, the combination with a base, of acasing having at one end a spring-hinge connection with the base andformed with an upper movable section provided with means for fasteningit inv closed condition, a train of gears arranged shafts in said casingto intermesh in succession from one shaft to another, said train beingdivided into units, including type-wheels, and the gears permanentlyinterlocking while bearing fixed relation to each other, a'unit-formingtype-wheel comprising a hub fixedly mounted on -one of said shafts andprovided with teeth, a type-bearing annular rim loosely surrounding saidhub and provided with teeth, and a springpawl on said rim engaging saidhub-teeth, and a spring-pressed dog supported in the casing .to engagesaid rim-teeth and extending into thepath of the upper casingsection tobe depressed by closure thereof into engagement with said rim-teeth, forthe lpurpose set forth.

3. ln a direct-geared time-stamp, the combination with a base, of acasing having at one end a spring-hinge connection with the base andformed with a door on its'fre'e end, said door having an inwardlyprojecting a train of gears arranged on adjacent sion from one shaft toanother, said train being divided into units, including typewheels, andthe gears permanently interlocking while bearing fixed relation to eachother, and a unit-forming type-wheel comprising a recessed hub fxedlymounted on one of said shafts and provided with teeth, a type-bearingannular rim loosely surrounding the hub, a spring-pawl on said rimengaging said teeth, and a plate covering the hub-recess and providedwith a sleeve extension having notches to be engaged by the lfingeronfsaid door, for the purpose set forth.

4. In a time-stamp,'the combination with a base, of a casing containingthe stamping mechanism and having at one end a springhinge connectionwith the base, said casing being formed of separable longitudinal secandlocking means for the sections comprising a key-actuated vcurved tumblerfor one section and a bracket on the other

